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alexdok [17]
2 years ago
13

Need help on this FAST

Mathematics
2 answers:
Sholpan [36]2 years ago
4 0

Answer: C

Step-by-step explanation: i just did this test

Pie2 years ago
3 0

Answer:

(4,47) (1,52)

Step-by-step explanation:

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Determine the slope and y-intercept of the line y=-6x+8
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Remember that the slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

In this case:

m = -6

b = 8

This means that -6 is the slope and (0, 8) is the y-intercept.

Hope this helped!

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What is the area of this composite figure?
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135 centimeters squared
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A person goes to work across three intersections. The probability of seeing the red light at the first intersection is 60%, the
vazorg [7]
  1. add together all (3) percentages                                                                        60+70+80=210
  2. subtract the answer from 300 (300 because there were 3 percentages)   300-210=90
  3. divide this answer by 3 (also because there were 3 percentages)            90/3=30
  4. the probability of the person walking without a red light is 30%
8 0
3 years ago
The measure of one acute angle in this right triangle is 30°. What is the measure of the
Viktor [21]

Answer:

60°

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I don't know to find the answer to 8. Can someone explain to me?
lapo4ka [179]
Perhaps the easiest way to find the midpoint between two given points is to average their coordinates: add them up and divide by 2.

A) The midpoint C' of AB is
.. (A +B)/2 = ((0, 0) +(m, n))/2 = ((0 +m)/2, (0 +n)/2) = (m/2, n/2) = C'
The midpoint B' is
.. (A +C)/2 = ((0, 0) +(p, 0))/2 = (p/2, 0) = B'
The midpoint A' is
.. (B +C)/2 = ((m, n) +(p, 0))/2 = ((m+p)/2, n/2) = A'

B) The slope of the line between (x1, y1) and (x2, y2) is given by
.. slope = (y2 -y1)/(x2 -x1)
Using the values for A and A', we have
.. slope = (n/2 -0)/((m+p)/2 -0) = n/(m+p)

C) We know the line goes through A = (0, 0), so we can write the point-slope form of the equation for AA' as
.. y -0 = (n/(m+p))*(x -0)
.. y = n*x/(m+p)

D) To show the point lies on the line, we can substitute its coordinates for x and y and see if we get something that looks true.
.. (x, y) = ((m+p)/3, n/3)
Putting these into our equation, we have
.. n/3 = n*((m+p)/3)/(m+p)
The expression on the right has factors of (m+p) that cancel*, so we end up with
.. n/3 = n/3 . . . . . . . true for any n

_____
* The only constraint is that (m+p) ≠ 0. Since m and p are both in the first quadrant, their sum must be non-zero and this constraint is satisfied.

The purpose of the exercise is to show that all three medians of a triangle intersect in a single point.
7 0
3 years ago
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